What is two-color injection molding?

Two-color injection molding mainly uses two material tubes of a two-color molding machine and two sets of molds to make two-color products through two moldings in sequence.

Compared with traditional injection molding, the dual-material co-injection molding process has the following advantages:

1. The core material can use low-viscosity materials to reduce the injection pressure.
2. Considering environmental protection, the core material can use recycled secondary material.
3. According to different use characteristics, for example, soft materials are used for the skin layer of thick products, rigid materials are used for core materials, or foamed plastics can be used for core materials to reduce weight.
4. Lower-quality core materials can be used to reduce costs.
5. To increase product performance, the skin or core material can be expensive and have unique surface properties, such as anti-electromagnetic interference, high electrical conductivity, and other materials.
6. Appropriate combination of skin and core material can reduce the residual stress of molded products and increase mechanical strength or product surface properties.
7. Produce products like marble texture.

From the characteristics and applications of multi-color injection molding and double-material co-injection molding, there will be a trend to replace the traditional injection molding process in the future gradually.

The innovative injection molding technology improves the precision of the injection molding process, provides complex process technology, and expands the scope of the injection molding process field.

Innovative injection equipment and techniques are sufficient to meet the increasingly diverse, high-quality, and high-value-added product demands.

Two-color injection molding has been widely used in almost all plastic fields, such as electronic products, electric tools, medical products, home appliances, toys, etc.

The production and molding of two-color molds and the research and development of two-color multi-color injection molding machines and raw materials have also developed rapidly.